JP6547373B2 - Coil device and method of manufacturing coil device - Google Patents

Coil device and method of manufacturing coil device Download PDF

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JP6547373B2
JP6547373B2 JP2015071600A JP2015071600A JP6547373B2 JP 6547373 B2 JP6547373 B2 JP 6547373B2 JP 2015071600 A JP2015071600 A JP 2015071600A JP 2015071600 A JP2015071600 A JP 2015071600A JP 6547373 B2 JP6547373 B2 JP 6547373B2
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winding
wire
wire portion
winding layer
coil device
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JP2016192489A (en
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正明 岩倉
正明 岩倉
勝宏 石垣
勝宏 石垣
前田　浩
浩 前田
聡司 眞保
聡司 眞保
伸夫 北島
伸夫 北島
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TDK Corp
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Priority to KR1020160033518A priority patent/KR101837264B1/en
Priority to US15/076,227 priority patent/US9793044B2/en
Priority to CN201911075349.0A priority patent/CN110853897B/en
Priority to CN201610191154.2A priority patent/CN106024332A/en
Publication of JP2016192489A publication Critical patent/JP2016192489A/en
Priority to US15/683,157 priority patent/US10096421B2/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2823—Wires
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H01F27/325—Coil bobbins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/064—Winding non-flat conductive wires, e.g. rods, cables or cords
    • H01F41/069—Winding two or more wires, e.g. bifilar winding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H01F2005/022—Coils wound on non-magnetic supports, e.g. formers wound on formers with several winding chambers separated by flanges, e.g. for high voltage applications

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Coils Or Transformers For Communication (AREA)

Description

本発明は、コイル装置等に関し、より詳細には、複数の巻線部が巻回されており高圧トランスとして好適に用いられるコイル装置等に関する。   The present invention relates to a coil device and the like, and more particularly, to a coil device and the like which are preferably used as a high voltage transformer in which a plurality of winding portions are wound.

ボビンの外周面に仕切部を設け、仕切部の一方側に１次側のコイルを形成し、他方側に２次側のコイルを形成したコイル装置が提案されている（特許文献１参照）。このようなコイル装置は、薄型化（低背化）に対して有利な構造を有しているため、ＴＶなどの電気製品に用いるトランスや、自動車に搭載する車載用のトランス等としての需要がある。   A coil device has been proposed in which a partition is provided on the outer peripheral surface of the bobbin, a primary side coil is formed on one side of the partition, and a secondary side coil is formed on the other side (see Patent Document 1). Such a coil device has a structure that is advantageous for thinning (reducing the height), so there is a demand for a transformer used for electric products such as a TV, a transformer mounted on a car, etc. is there.

実開５−４８３１３号公報Japanese Utility Model Application Publication No. 5-48313

しかしながら、２次側に大きな電流が流れる高圧トランス等では、２次側のコイルでの直流抵抗を低減するために径の大きいワイヤを採用した場合、ワイヤ間の隙間が大きくなるため占積率が低下し、トランスの小型化が難しくなるという問題が生じている。   However, in a high-voltage transformer or the like where a large current flows on the secondary side, if a wire with a large diameter is adopted to reduce DC resistance in the coil on the secondary side, the space factor between the wires becomes large. The problem is that it becomes difficult to downsize the transformer.

本発明は、このような実状に鑑みてなされ、占積率が高く省スペースであるコイル装置に関する。   The present invention is made in view of such a situation, and relates to a coil device which has a high space factor and is space-saving.

上記目的を達成するために、本発明に係るコイル装置は、
外周面に仕切部を有するボビンと、
前記仕切部の一方側の前記外周面に巻回された第１巻線部と、
前記仕切部の他方側の前記外周面に巻回され、内巻層と当該内巻層より前記他方側の前記外周面に対して遠くに位置する外巻層とを有する第２巻線部と、を有するコイル装置であって、
前記第２巻線部は、巻軸方向に互いに隣り合うように巻かれている第１ワイヤ部と第２ワイヤ部とを有し、
前記内巻層では、前記第１ワイヤ部と前記第２ワイヤ部とのうち一方が他方より前記第１巻線部の近くに配置されており、
前記外巻層では、前記第１ワイヤ部と前記第２ワイヤ部とのうち前記他方が前記一方より前記第１巻線部の近くに配置されていることを特徴とする。 In order to achieve the above object, a coil device according to the present invention is:
A bobbin having a partition on the outer peripheral surface,
A first winding portion wound around the outer peripheral surface on one side of the partition portion;
A second winding portion wound around the outer peripheral surface on the other side of the partition, and having an inner winding layer and an outer winding layer located farther from the outer winding surface on the other side than the inner winding layer; A coil device having
The second winding portion has a first wire portion and a second wire portion wound so as to be adjacent to each other in the winding axis direction,
In the inner winding layer, one of the first wire portion and the second wire portion is disposed closer to the first winding portion than the other,
In the outer winding layer, the other of the first wire portion and the second wire portion is disposed closer to the first winding portion than the one.

本発明に係るコイル装置は、第２巻線部が、第１ワイヤ部と第２ワイヤ部が巻軸方向に互いに隣り合うように巻かれた巻線構造を有している。このような巻線構造により、第２巻線部の電流が、第１ワイヤ部と第２ワイヤ部に分かれて流れるため、本発明に係るコイル装置は、第２巻線部に含まれる個々のワイヤ部の線径を小さくして第２巻線部の占積率を向上させ、省スペース化を実現できる。   In the coil device according to the present invention, the second winding portion has a winding structure in which the first wire portion and the second wire portion are wound adjacent to each other in the winding axis direction. With such a winding structure, the current of the second winding portion is divided and flows to the first wire portion and the second wire portion. Therefore, the coil device according to the present invention includes the individual coils included in the second winding portion. It is possible to realize space saving by reducing the wire diameter of the wire portion and improving the space factor of the second winding portion.

さらに、本発明に係るコイル装置において、内巻層では、第１ワイヤ部と第２ワイヤ部とのうち一方が他方より第１巻線部の近くに配置されており、外巻層では内巻層とは反対である。このような配置とすることにより、第１ワイヤ部と第２ワイヤ部とで、第１巻線部に対する磁気結合を揃えることができる。したがって、本発明に係るコイル装置は、いずれかのワイヤ部に偏って電流が流れる問題を防止して、一部のワイヤ部に大電流が流れることによる発熱やエネルギー損失を防ぐことができる。また、第１ワイヤ部と第２ワイヤ部が端子又は実装基板を介して接続されている場合は、各ワイヤ部間で第１巻線部に対する磁気結合に偏りがあると、第１ワイヤ部と第２ワイヤ部との間に循環電流が発生する。本発明に係るコイル装置は、このような循環電流の発生を防止し、循環電流の発生に伴う発熱やエネルギー損失を防ぐことができる。   Furthermore, in the coil device according to the present invention, in the inner winding layer, one of the first wire portion and the second wire portion is disposed closer to the first winding portion than the other, and in the outer winding layer, the inner winding layer It is the opposite of the layer. With such an arrangement, the magnetic coupling to the first winding portion can be made uniform between the first wire portion and the second wire portion. Therefore, the coil device according to the present invention can prevent the problem of current flow biased to any one of the wire portions, and can prevent heat generation and energy loss due to large current flowing to a part of the wire portions. When the first wire portion and the second wire portion are connected via the terminal or the mounting substrate, if there is a bias in the magnetic coupling to the first winding portion between the wire portions, the first wire portion A circulating current is generated between the second wire portion. The coil device according to the present invention can prevent the generation of such a circulating current, and can prevent heat generation and energy loss associated with the generation of the circulating current.

また、前記外巻層の前記第１ワイヤ部は、前記外巻層の前記第２ワイヤ部より、前記内巻層の前記第２ワイヤ部の近くに配置されていてもよい。   Further, the first wire portion of the outer winding layer may be disposed closer to the second wire portion of the inner winding layer than the second wire portion of the outer winding layer.

このような構成とすることにより、第１ワイヤ部と第２ワイヤ部とで、第１巻線部に対する磁気結合を、より均質に揃えることができる。   With such a configuration, the magnetic coupling with the first winding portion can be made more uniform in the first wire portion and the second wire portion.

また、本発明に係るコイル装置は、第１巻線部と第２巻線部との磁気結合を高める観点から、ボビンの内部に配置されたコアを有することが好ましい。   The coil device according to the present invention preferably has a core disposed inside the bobbin from the viewpoint of enhancing the magnetic coupling between the first winding portion and the second winding portion.

本発明に係るコイル装置の製造方法は、
外周面に仕切部を有するボビンを準備する工程と、
前記仕切部の一方側の前記外周面に第１巻線部を形成する工程と、
前記仕切部の他方側の前記外周面に、第１ワイヤ部及び第２ワイヤ部を有するワイヤ束を、前記第１ワイヤ部と前記第２ワイヤ部とが巻軸方向に互いに隣り合うように巻回して、第２巻線部の内巻層を形成する工程と、
前記ワイヤ束を捻って前記第１ワイヤ部と前記第２ワイヤ部との位置関係を変えたのち、前記内巻層の外側に、位置関係を変えた前記ワイヤ束を、前記第１ワイヤ部と前記第２ワイヤ部とが前記巻軸方向に互いに隣り合うように巻回して、前記第２巻線部の外巻層を形成する工程と、を有する。 The method of manufacturing a coil device according to the present invention is
Preparing a bobbin having a partition on the outer peripheral surface;
Forming a first winding portion on the outer peripheral surface on one side of the partition portion;
A wire bundle having a first wire portion and a second wire portion is wound on the outer peripheral surface on the other side of the partition portion such that the first wire portion and the second wire portion are adjacent to each other in the winding axis direction Forming an inner winding layer of the second winding portion;
After twisting the wire bundle to change the positional relationship between the first wire portion and the second wire portion, the wire bundle whose positional relationship is changed to the outside of the inner wound layer is the first wire portion and And forming the outer winding layer of the second winding portion by winding the second wire portion so as to be adjacent to each other in the winding axis direction.

このような製造方法により、占積率が高く省スペースであるコイル装置が得られる。   With such a manufacturing method, a coil device having a high space factor and space saving can be obtained.

図１は、本発明の一実施形態に係るコイル装置を表す断面図である。FIG. 1 is a cross-sectional view showing a coil device according to an embodiment of the present invention. 図２は、図１に示すコイル装置の回路図である。FIG. 2 is a circuit diagram of the coil device shown in FIG. 図３は、変形例に係るコイル装置の回路図である。FIG. 3 is a circuit diagram of a coil device according to a modification. 図４は、コイル装置の製造方法を表す概略断面図である。FIG. 4 is a schematic cross-sectional view showing a method of manufacturing a coil device. 図５は、コイル装置の製造方法を表す概略平面図である。FIG. 5 is a schematic plan view showing a method of manufacturing a coil device. 図６は、参考例に係るコイル装置を表す断面図である。FIG. 6 is a cross-sectional view showing a coil device according to a reference example.

以下、本発明を、図面に示す実施形態に基づき説明する。   Hereinafter, the present invention will be described based on embodiments shown in the drawings.

図１は、本発明の一実施形態に係るコイル装置１０の断面図である。コイル装置１０は、ボビン２０と、第１巻線部３０と、第２巻線部４０と、端子５１〜５６と、コア５０とを有する。本発明は、ボビン２０の両端部に設けられた端子５１〜５６を介して基板に実装される横型のコイル装置１０であるが、本発明に係るコイル装置の形状としてはこれに限定されず、本発明は縦型のコイル装置に適用されてもよい。   FIG. 1 is a cross-sectional view of a coil device 10 according to an embodiment of the present invention. The coil device 10 has a bobbin 20, a first winding portion 30, a second winding portion 40, terminals 51 to 56, and a core 50. Although the present invention is a horizontal coil device 10 mounted on a substrate via the terminals 51 to 56 provided at both ends of the bobbin 20, the shape of the coil device according to the present invention is not limited to this. The present invention may be applied to vertical coil devices.

ボビン２０は、コア５０を配置するための中空部２９が内部に形成された中空筒状の外形状を有している。ボビン２０の外周面２２及び中空筒部２９は、第１巻線部３０及び第２巻線部４０の巻軸方向Ｘに延びている。また、コア５０の外周面２２の３箇所には、外径方向に突出する突起が形成されている。コア５０の一方の端部には第１鍔部２４が形成されており、コア５０の他方の端部に第２鍔部２６が形成されている。さらに、コア５０の外周面２２であって、第１鍔部２４と第２鍔部２６の間には、仕切部２８が形成されている。   The bobbin 20 has a hollow cylindrical outer shape in which a hollow portion 29 for disposing the core 50 is formed. The outer circumferential surface 22 of the bobbin 20 and the hollow cylindrical portion 29 extend in the winding axial direction X of the first winding portion 30 and the second winding portion 40. Further, at three locations on the outer peripheral surface 22 of the core 50, protrusions that protrude in the outer diameter direction are formed. A first ridge 24 is formed at one end of the core 50, and a second ridge 26 is formed at the other end of the core 50. Furthermore, on the outer peripheral surface 22 of the core 50 and between the first collar portion 24 and the second collar portion 26, a partition portion 28 is formed.

外周面２２は、仕切部２８の一方側の外周面２２であって、第１巻線部３０が巻かれる第１外周面２２ａと、仕切部２８の他方側の外周面２２であって、第２巻線部４０が巻かれる第２外周面２２ｂとに分けられる。仕切部２８は、第１鍔部２４及び第２鍔部２６と同様に、外周方向に連続する鍔状の形状を有している。しかし、仕切部２８の形状は、第１巻線部３０及び第２巻線部４０を、第１外周面２２ａと第２外周面２２ｂに分けて巻回できるように、外周面２２を仕切ることができる形状であれば、特に限定されない。例えば、仕切部２８は、外周方向に断続的に形成される突起等で構成されていても良い。   The outer peripheral surface 22 is an outer peripheral surface 22 on one side of the partition portion 28 and is a first outer peripheral surface 22 a on which the first winding portion 30 is wound and an outer peripheral surface 22 on the other side of the partition portion 28 It is divided into the 2nd outer peripheral surface 22b in which the 2 winding part 40 is wound. The partition portion 28 has, like the first collar portion 24 and the second collar portion 26, a bowl-like shape continuous in the outer peripheral direction. However, the shape of the partition portion 28 partitions the outer circumferential surface 22 so that the first winding portion 30 and the second winding portion 40 can be divided and wound into the first outer circumferential surface 22 a and the second outer circumferential surface 22 b. The shape is not particularly limited as long as the shape can be formed. For example, the partition part 28 may be comprised by the protrusion etc. which are intermittently formed in the outer peripheral direction.

第１巻線部３０は、仕切部２８から第１鍔部２４まで続く第１外周面２２ａに巻回されている。第１巻線部３０の巻き数は特に限定されず、図１に示すように第１外周面２２ａ表面に１層のみ巻かれている態様であってもよく、図１に示す第２巻線部４０のように多層に巻かれた態様であってもよい。また、第１巻線部３０は、１本のワイヤ部で構成されるが、後述する第２巻線部４０と同様に複数のワイヤ部で構成されていてもよい。なお、図１では省略しているが、第１巻線部３０の端部は、ボビン２０の第１鍔部２４に設けられた端子５１、５２（図２及び図３参照）に接続されている。   The first winding portion 30 is wound around a first outer peripheral surface 22 a continuing from the partition portion 28 to the first collar portion 24. The number of turns of the first winding portion 30 is not particularly limited, and only one layer may be wound on the surface of the first outer peripheral surface 22a as shown in FIG. 1, and the second winding shown in FIG. It may be a multi-layered mode such as the part 40. Moreover, although the 1st winding part 30 is comprised by one wire part, you may be comprised by several wire parts similarly to the 2nd winding part 40 mentioned later. Although not shown in FIG. 1, the end of the first winding portion 30 is connected to the terminals 51, 52 (see FIGS. 2 and 3) provided on the first collar portion 24 of the bobbin 20. There is.

第２巻線部４０は、仕切部２８から第２鍔部２６まで続く第２外周面２２ｂに巻回されている。第２巻線部４０は、後述する第１及び第２ワイヤ部４２、４４が、第２外周面２２ｂに２重に巻かれることにより形成されており、内巻層４０ａと外巻層４０ｂとを有する。第２巻線部４０のうち、内巻層４０ａは、第２外周面２２ｂの上に直接巻かれた部分であり、外巻層４０ｂは、内巻層４０ａの上に巻かれた部分である。したがって、外巻層４０ｂは、内巻層４０ａより第２外周面２２ｂに対して遠くに位置している。   The second winding portion 40 is wound around a second outer peripheral surface 22 b continuing from the partition portion 28 to the second brim portion 26. The second winding portion 40 is formed by doubly winding the first and second wire portions 42 and 44 described later on the second outer peripheral surface 22b, and the inner winding layer 40a and the outer winding layer 40b are formed. Have. Of the second winding portion 40, the inner winding layer 40a is a portion directly wound on the second outer circumferential surface 22b, and the outer winding layer 40b is a portion wound on the inner winding layer 40a. . Therefore, the outer winding layer 40b is located farther from the second outer circumferential surface 22b than the inner winding layer 40a.

図１に示すように、第２巻線部４０は、第２外周面２２ｂに沿う方向でもある巻軸方向Ｘに互いに隣り合うように巻かれている第１ワイヤ部４２と第２ワイヤ部４４とを有する。第１ワイヤ部４２と第２ワイヤ部４４とは絶縁被覆で覆われた被覆線であり、少なくとも第２外周面２２ｂを周回している部分では、互いに絶縁されている。   As shown in FIG. 1, the second wire portion 40 is wound around the first wire portion 42 and the second wire portion 44 so as to be adjacent to each other in the winding axis direction X which is also a direction along the second outer peripheral surface 22 b. And. The first wire portion 42 and the second wire portion 44 are coated wires covered with an insulating coating, and are insulated from each other at least in the portion around the second outer peripheral surface 22 b.

第２巻線部４０の内巻層４０ａは、第１ワイヤ部４２のうち内巻層４０ａに含まれる部分である内巻層第１ワイヤ部４２ａと、第２ワイヤ部４４のうち内巻層４０ａに含まれる部分である内巻層第２ワイヤ部４４ａとで構成される。内巻層第１ワイヤ部４２ａと内巻層第２ワイヤ部４４ａとは、いずれも第２外周面２２ｂに沿ったらせん形状を有している。したがって、内巻層第１ワイヤ部４２ａと内巻層第２ワイヤ部４４ａとは、一方のらせん形状の隙間に他方のらせん形状が配置される態様となっている。   The inner winding layer 40 a of the second winding portion 40 is an inner winding layer of an inner winding first wire portion 42 a which is a portion included in the inner winding layer 40 a of the first wire portion 42 and an inner winding layer of the second wire portion 44. It is comprised with the inner-winding layer 2nd wire part 44a which is a part contained in 40a. Each of the inner winding layer first wire portion 42a and the inner winding layer second wire portion 44a has a helical shape along the second outer peripheral surface 22b. Therefore, the inner winding layer first wire portion 42a and the inner winding layer second wire portion 44a are in a mode in which the other spiral shape is disposed in the gap of one spiral shape.

また、第２巻線部４０の外巻層４０ｂは、第１ワイヤ部４２のうち外巻層４０ｂに含まれる部分である外巻層第１ワイヤ部４２ｂと、第２ワイヤ部４４のうち外巻層４０ｂに含まれる部分である外巻層第２ワイヤ部４４ｂとで構成される。外巻層第１ワイヤ部４２ｂと外巻層第２ワイヤ部４４ｂとは、いずれも内巻層４０ａの外側表面に沿ったらせん形状を有している。外巻層４０ｂも内巻層４０ａと同様の構造であり、外巻層第１ワイヤ部４２ｂと外巻層第２ワイヤ部４４ｂとは、一方のらせん形状の隙間に他方のらせん形状が配置される態様となっている。   The outer winding layer 40b of the second winding portion 40 is a portion of the first wire portion 42 which is included in the outer winding layer 40b, and the outer winding layer 40b of the second wire portion 44 and the outer portion of the second wire portion 44. It is comprised by the outer-winding layer 2nd wire part 44b which is a part contained in the winding layer 40b. The outer wound first wire portion 42b and the outer wound second wire portion 44b both have a spiral shape along the outer surface of the inner wound layer 40a. The outer winding layer 40b also has the same structure as the inner winding layer 40a, and the outer winding layer first wire portion 42b and the outer winding layer second wire portion 44b have the other spiral shape disposed in the gap of one spiral shape. It is a mode that

内巻層４０ａでは、各部の中心間距離Ｄ１ａ、Ｄ２ａ（図１参照）で比較した場合、第１ワイヤ部４２と第２ワイヤ部４４のうち、第２ワイヤ部４４が第１ワイヤ部４２より、第１巻線部３０の近くに配置されている。これに対して、外巻層４０ｂでは、各部の中心間距離Ｄ１ｂ、Ｄ２ｂ（図１参照）で比較した場合、第１ワイヤ部４２と第２ワイヤ部４４のうち、第１ワイヤ部４２が第２ワイヤ部４４より第１巻線部３０の近くに配置されている。すなわち、第２巻線部４０では、内巻層４０ａにおいて第１ワイヤ部４２と第２ワイヤ部４４のうち一方が他方より第１巻線部３０の近くに配置され、外巻層４０ｂにおいて第１ワイヤ部４２と第２ワイヤ部４４のうち他方が一方より第１巻線部３０の近くに配置される関係になっている。なお、第１ワイヤ部４２と第２ワイヤ部４４の配置は、互いに入れ換ってもかまわない。   In the inner winding layer 40a, when the center-to-center distances D1a and D2a (see FIG. 1) of the respective portions are compared, the second wire portion 44 of the first wire portion 42 and the second wire portion 44 is from the first wire portion 42. , And the first winding 30. On the other hand, in the outer winding layer 40b, when the center-to-center distances D1b and D2b (see FIG. 1) of the respective parts are compared, the first wire portion 42 of the first wire portion 42 and the second wire portion 44 It is disposed closer to the first winding portion 30 than the two-wire portion 44. That is, in the second winding portion 40, in the inner winding layer 40a, one of the first wire portion 42 and the second wire portion 44 is disposed closer to the first winding portion 30 than the other, and in the outer winding layer 40b The other of the 1-wire portion 42 and the second wire portion 44 is in a relationship of being disposed closer to the first winding portion 30 than the one. The arrangement of the first wire portion 42 and the second wire portion 44 may be interchanged with each other.

巻軸方向Ｘを通る断面である図１に示されるように、内巻層４０ａでは、仕切部２８から巻軸方向Ｘに沿って遠ざかる方向に向かって、第２ワイヤ部４４、第１ワイヤ部４２、第２ワイヤ部４４、第１ワイヤ部４２・・・の順に配列されている。これに対して、外巻層４０ｂでは、仕切部２８から巻軸方向Ｘに沿って遠ざかる方向に向かって、第１ワイヤ部４２、第２ワイヤ部４４、第１ワイヤ部４２、第２ワイヤ部４４・・・の順に配列されている。このように、内巻層４０ａと外巻層４０ｂとで、第１ワイヤ部４２と第２ワイヤ部４４との配列が入れ換っている。そのため、外巻層第１ワイヤ部４２ｂは、外巻層第２ワイヤ部４４ｂより、内巻層第２ワイヤ部４４ａの近くに配置されている。   As shown in FIG. 1, which is a cross section passing through the winding axis direction X, in the inner winding layer 40a, the second wire portion 44 and the first wire portion are directed in the direction away from the partition 28 along the winding axis direction X. 42, the second wire portion 44, the first wire portion 42,... On the other hand, in the outer winding layer 40b, the first wire portion 42, the second wire portion 44, the first wire portion 42, and the second wire portion are directed in the direction away from the partition portion 28 along the winding axis direction X. It is arranged in the order of 44. Thus, the arrangement of the first wire portion 42 and the second wire portion 44 is reversed between the inner winding layer 40 a and the outer winding layer 40 b. Therefore, the outer winding layer first wire portion 42b is disposed closer to the inner winding layer second wire portion 44a than the outer winding layer second wire portion 44b.

なお、このような第２巻線部４０は、第２ワイヤ部４４を第１ワイヤ部４２部より仕切部２８の近くに配置したワイヤ束４６（図５（ａ））をボビン２０に巻回して、内巻層４０ａを形成し、その反対に、第１ワイヤ部４２を、第２ワイヤ部４４より仕切部２８の近くに配置したワイヤ束４６（図５（ｂ））をボビン２０に巻回して、外巻層４０ｂを形成することで作製することができる。第２巻線部４０の形成方法については、後ほど詳述する。   Such a second winding portion 40 winds around a bobbin 20 a wire bundle 46 (FIG. 5A) in which the second wire portion 44 is disposed closer to the partition portion 28 than the first wire portion 42 portion. Forming the inner winding layer 40 a, and conversely winding the wire bundle 46 (FIG. 5 (b)) in which the first wire portion 42 is disposed closer to the partition 28 than the second wire portion 44. It can be produced by forming the outer winding layer 40b by turning. The method of forming the second winding portion 40 will be described in detail later.

ボビン２０の中空部２９には、磁性体のコア５０が配置されている。また、第１鍔部２４には端子５１、５２が設けられており、第２鍔部２６には端子５３、５４、５５、５６が設けられている。コイル装置１０は、例えば、端子５１〜５６を実装基板にはんだ付けすることにより取り付けられて、トランス等として使用される。   A magnetic core 50 is disposed in the hollow portion 29 of the bobbin 20. Further, terminals 51 and 52 are provided in the first collar portion 24, and terminals 53, 54, 55 and 56 are provided in the second collar portion 26. The coil device 10 is attached, for example, by soldering the terminals 51 to 56 to a mounting substrate, and is used as a transformer or the like.

図２は、コイル装置１０の回路図である。第１巻線部３０の両端部は端子５１と端子５２に接続されている。これに対して、第２巻線部４０の第１ワイヤ部４２の両端部は端子５４と端子５６に接続されており、第２巻線部４０の第２ワイヤ部４４の両端部は、第１ワイヤ部４２の両端部とは異なる端子５３と端子５５に接続されている。このような構成であれば、例えば第１巻線部３０に１次電流が流れた場合に、第１ワイヤ部４２及び第２ワイヤ部４４に生じた誘導電流による出力を、ワイヤ部４２、４４毎に取り出すことができる。   FIG. 2 is a circuit diagram of the coil device 10. Both end portions of the first winding portion 30 are connected to the terminal 51 and the terminal 52. On the other hand, both ends of the first wire portion 42 of the second winding portion 40 are connected to the terminals 54 and 56, and both ends of the second wire portion 44 of the second winding portion 40 are The terminal 53 and the terminal 55 which are different from both ends of the 1-wire portion 42 are connected. With such a configuration, for example, when the primary current flows in the first winding portion 30, the output by the induced current generated in the first wire portion 42 and the second wire portion 44 is the wire portions 42, 44. It can be taken out every time.

ただし、第１ワイヤ部４２及び第２ワイヤ部４４の端子への接続態様はこれに限定されない。例えば、図４は、変形例に係るコイル装置１０の回路図である。変形例では、第１ワイヤ部４２の両端部と第２ワイヤ部４４の両端部とが、いずれも端子５３と端子５６とに接続されている点が、コイル装置１０とは異なる。このような変形例に係る態様は、ワイヤ部４２、４４の出力をまとめて取り出す態様であることを除き、コイル装置１０と同様の効果を奏する。   However, the connection aspect to the terminal of the 1st wire part 42 and the 2nd wire part 44 is not limited to this. For example, FIG. 4 is a circuit diagram of a coil device 10 according to a modification. The modification is different from the coil device 10 in that both ends of the first wire portion 42 and both ends of the second wire portion 44 are connected to the terminal 53 and the terminal 56, respectively. The aspect which concerns on such a modification has the same effect as coil device 10 except being a mode which takes out the output of wire sections 42 and 44 collectively.

コイル装置１０におけるボビン２０の材質は特に限定されないが、樹脂等の絶縁材料で作製されることが好ましく、例えば耐熱性等の観点からフェノール樹脂で作製されることが特に好ましい。また、コア５０の材質も磁性体であれば特に限定されず、コア５０は、Ｆｅ−Ｎｉ合金粉、Ｆｅ−Ｓｉ合金粉、Ｆｅ−Ｓｉ−Ｃｒ合金粉、Ｆｅ−Ｓｉ−Ａｌ合金粉、パーマロイ粉、アモルファス粉、Ｆｅ粉などの金属粒子や、フェライト粒子を加圧成形等することにより製造される。   The material of the bobbin 20 in the coil device 10 is not particularly limited, but is preferably made of an insulating material such as a resin, and for example, it is particularly preferable to be made of a phenol resin from the viewpoint of heat resistance. Further, the material of the core 50 is not particularly limited as long as it is a magnetic material, and the core 50 is not limited to Fe-Ni alloy powder, Fe-Si alloy powder, Fe-Si-Cr alloy powder, Fe-Si-Al alloy powder, and permalloy. It is manufactured by pressure-molding metal particles such as powder, amorphous powder and Fe powder, and ferrite particles.

第１巻線部３０を構成するワイヤ部、第２巻線部４０を構成する第１ワイヤ部４２及び第２ワイヤ部４４は、導体を絶縁体で被覆した被覆線であれば特に限定されず、導体は１本（単線）のワイヤで構成されていても、撚り線などのように複数のワイヤを束ねて構成されていてもよく、導体の材質としては、銅、銀、金、またはこれらの合金などが例示される。第１巻線部３０のワイヤ部、第２巻線部４０の第１ワイヤ部４２及び第２ワイヤ部４４の両端部は、端子５１〜５５に、レーザ溶接、抵抗溶接あるいはハンダ付けなどで接続してある。   The wire portion constituting the first winding portion 30 and the first wire portion 42 and the second wire portion 44 constituting the second winding portion 40 are not particularly limited as long as they are coated wires coated with a conductor with an insulator. The conductor may be composed of a single wire (single wire) or a bundle of a plurality of wires such as a stranded wire, and the material of the conductor is copper, silver, gold, or these And their alloys. The wire portion of the first winding portion 30, and both end portions of the first wire portion 42 and the second wire portion 44 of the second winding portion 40 are connected to the terminals 51 to 55 by laser welding, resistance welding, soldering or the like Yes.

コイル装置１０は、例えば以下のような手順で製造することができる。まず、図１に示すような仕切部２８が外周面２２に形成されたボビン２０を準備する。ボビン２０は、例えば樹脂成型等により作製される。ボビン２０の両端部には、端子５１〜５５（図５参照）が設けられていることが好ましい。   The coil device 10 can be manufactured, for example, according to the following procedure. First, the bobbin 20 having the partitioning portion 28 as shown in FIG. 1 formed on the outer peripheral surface 22 is prepared. The bobbin 20 is manufactured by resin molding etc., for example. It is preferable that terminals 51 to 55 (see FIG. 5) be provided at both ends of the bobbin 20.

次に、仕切部２８の他方側の外周面２２である第２外周面２２ｂに、第２巻線部４４を形成する。なお、第２巻線部４０は、第１巻線部３０を仕切部２８の一方側の外周面２２である第１外周面２２ａに形成したのち、形成されてもよい。図４及び図５は、第２巻線部４０の形成手順を表す概念図である。   Next, the second winding portion 44 is formed on the second outer peripheral surface 22 b which is the outer peripheral surface 22 on the other side of the partition portion 28. The second winding portion 40 may be formed after the first winding portion 30 is formed on the first outer peripheral surface 22 a which is the outer peripheral surface 22 on one side of the partition portion 28. FIGS. 4 and 5 are conceptual diagrams showing the formation procedure of the second winding portion 40. FIG.

図４（ａ）に示すように、第２巻線部４０を形成する工程では、まず、第２巻線部４０の内巻層４０ａを形成する。   As shown in FIG. 4A, in the step of forming the second winding portion 40, first, the inner winding layer 40a of the second winding portion 40 is formed.

図５（ａ）に示すように、内巻層４０ａは、第１ワイヤ部４２及び第２ワイヤ部４４を有するワイヤ束４６を、第１ワイヤ部４２と第２ワイヤ部４４とが巻軸方向Ｘに互いに隣り合うように巻回することにより、形成する。内巻層４０ａの形成工程では、図４（ａ）において矢印９０で示すように、第２鍔部２６から仕切部２８に向かって、ワイヤ束４６を巻き進める。   As shown in FIG. 5A, in the inner winding layer 40a, the wire bundle 46 having the first wire portion 42 and the second wire portion 44 is wound in the axial direction along which the first wire portion 42 and the second wire portion 44 are wound. It is formed by winding X so as to be adjacent to each other. In the step of forming the inner winding layer 40a, as shown by the arrow 90 in FIG. 4A, the wire bundle 46 is wound from the second ridge 26 toward the partition 28.

図５（ａ）に示す例では、第１ワイヤ部４２の先端４２ｃは端子５６に仮接続されており、第２ワイヤ部４４の先端４４ｃは端子５５に仮接続されている。なお、ワイヤ束４６は、第１ワイヤ部４２や第２ワイヤ部４４以外のワイヤ部を含んでいてもよく、ワイヤ束４６に含まれるワイヤ部の数は２本に限定されず、３本、４本又は５本以上であってもよい。   In the example shown in FIG. 5A, the tip 42c of the first wire portion 42 is temporarily connected to the terminal 56, and the tip 44c of the second wire portion 44 is temporarily connected to the terminal 55. The wire bundle 46 may include wire portions other than the first wire portion 42 and the second wire portion 44, and the number of wire portions included in the wire bundle 46 is not limited to two, and three, It may be four or five or more.

第１ワイヤ部４２及び第２ワイヤ部４４を仕切部２８まで巻回して内巻層４０ａを形成した後、図５（ｂ）の矢印９４に示すように、ワイヤ束４６を１８０度捻ることにより、第１ワイヤ部４２と第２ワイヤ部４４の位置関係を変える。すなわち、内巻層４０ａを形成する際のワイヤ束４６では、図５（ａ）に示すように、第２ワイヤ部４４の方が第１ワイヤ部４２より仕切部２８に近い方に位置する。しかし、外巻層４０ｂを形成する際のワイヤ束４６では、図５（ｂ）に示すように、第１ワイヤ部４２の方が第２ワイヤ部４４より仕切部２８に近い方に位置する。   After the first wire portion 42 and the second wire portion 44 are wound up to the partition portion 28 to form the inner winding layer 40a, as shown by the arrow 94 in FIG. 5B, the wire bundle 46 is twisted by 180 degrees. The positional relationship between the first wire portion 42 and the second wire portion 44 is changed. That is, in the wire bundle 46 when forming the inner winding layer 40a, as shown in FIG. 5A, the second wire portion 44 is positioned closer to the partition portion 28 than the first wire portion 42. However, in the wire bundle 46 when forming the outer winding layer 40b, as shown in FIG. 5B, the first wire portion 42 is located closer to the partition portion 28 than the second wire portion 44.

図５（ｂ）に示すように位置関係を変えたワイヤ束４６を、内巻層４０ａの外側に、第１ワイヤ部４２と第２ワイヤ部４４とが巻軸方向Ｘに互いに隣り合うように巻回することにより、外巻層４０ｂを形成する。外巻層４０ｂの形成工程では、図４（ｂ）において矢印９２で示すように、内巻層４０ａの形成工程とは反対に、仕切部２８から第２鍔部２６に向かって、ワイヤ束４６を巻き進める。第２鍔部２６までワイヤ束４６を巻いたら、第１ワイヤ部４２の後端を端子５４に仮接続し、第２ワイヤ部４４の後端を端子５３に仮接続する。   As shown in FIG. 5B, the wire bundle 46 whose positional relationship has been changed is set so that the first wire portion 42 and the second wire portion 44 are adjacent to each other in the winding axis direction X outside the inner winding layer 40a. The outer winding layer 40 b is formed by winding. In the step of forming the outer winding layer 40b, as shown by the arrow 92 in FIG. 4B, the wire bundle 46 is moved from the partition portion 28 toward the second ridge portion 26 in the opposite direction to the step of forming the inner winding layer 40a. Advance. When the wire bundle 46 is wound up to the second flange portion 26, the rear end of the first wire portion 42 is temporarily connected to the terminal 54, and the rear end of the second wire portion 44 is temporarily connected to the terminal 53.

第２外周面２２ｂに第２巻線部４０を形成した後、第１外周面２２ａに第１巻線部３０を形成する。第１巻線部３０は、第２外周面２２ｂに、１本のワイヤ部を、第１鍔部２４から仕切部２８に向かって巻き進めることにより形成する。第１巻線部３０の両端部は、端子５１と端子５２に仮固定される。第１巻線部３０及び第２巻線部４０の巻回が完了したのち、溶接又ははんだ付け等により、ワイヤ部の端部と端子５１〜５６との固定を行う。   After the second winding portion 40 is formed on the second outer peripheral surface 22 b, the first winding portion 30 is formed on the first outer peripheral surface 22 a. The first winding portion 30 is formed on the second outer circumferential surface 22 b by winding one wire portion from the first collar portion 24 toward the partition portion 28. Both end portions of the first winding portion 30 are temporarily fixed to the terminals 51 and 52. After the winding of the first winding portion 30 and the second winding portion 40 is completed, the ends of the wire portions and the terminals 51 to 56 are fixed by welding or soldering.

上述のように、ボビン２０に第１巻線部３０と第２巻線部４０とを形成したのち、ボビン２０の中空部２９にコア５０を挿入することにより、図１に示すコイル装置１０を得る。なお、第１巻線部３０及び第２巻線部４０の外側には、絶縁テープが巻かれてもよい。   As described above, after the first winding portion 30 and the second winding portion 40 are formed on the bobbin 20, the core 50 is inserted into the hollow portion 29 of the bobbin 20, whereby the coil device 10 shown in FIG. obtain. An insulating tape may be wound on the outside of the first winding portion 30 and the second winding portion 40.

本実施形態に係るコイル装置１０は、第２巻線部４０が、第１ワイヤ部４２と第２ワイヤ部４４が巻軸方向に互いに隣り合うように巻かれた巻線構造を有しており、第２巻線部４０の電流が、第１ワイヤ部４２と第２ワイヤ部４４に分かれて流れる。そのため、第２巻線部４０に含まれる個々のワイヤ部４２、４４の線径を小さくして第２巻線部４０の占積率を向上させ、省スペース化を実現できる。   In the coil device 10 according to the present embodiment, the second winding portion 40 has a winding structure in which the first wire portion 42 and the second wire portion 44 are wound adjacent to each other in the winding axis direction. The current of the second winding portion 40 is divided into the first wire portion 42 and the second wire portion 44 and flows. Therefore, the wire diameter of each wire part 42 and 44 contained in the 2nd winding part 40 can be made small, the space factor of the 2nd winding part 40 can be improved, and space saving can be realized.

また、コイル装置１０は、第２巻線部４０の電流が、第１ワイヤ部４２と第２ワイヤ部４４に分かれて流れる構造とした際に生じる以下のような問題点を解決する。図６は、参考例に係るコイル装置１００の断面図である。コイル装置１００の第２巻線部１４０では、内巻層１４０ａでも、外巻層１４０ｂでも、第２ワイヤ部１４４の方が、第１ワイヤ部１４２より第１巻線部３０の近くに配置されている。コイル装置１００におけるその他の構成は、コイル装置１０と同様である。このようなコイル装置１００の第２巻線部１４０は、図５（ｂ）において矢印９４で示すようなワイヤ束４６の捻りを行わずに、ワイヤ束４６をボビン２０の第２外周面２２ｂに巻きつけることにより形成される。   In addition, the coil device 10 solves the following problems that occur when the current of the second winding portion 40 is divided into the first wire portion 42 and the second wire portion 44 and flows. FIG. 6 is a cross-sectional view of a coil device 100 according to a reference example. In the second winding portion 140 of the coil device 100, the second wire portion 144 is disposed closer to the first winding portion 30 than the first wire portion 142 in both the inner winding layer 140a and the outer winding layer 140b. ing. The other configuration in the coil device 100 is similar to that of the coil device 10. The second winding portion 140 of such a coil device 100 does not twist the wire bundle 46 as shown by the arrow 94 in FIG. 5B, and the wire bundle 46 is applied to the second outer peripheral surface 22b of the bobbin 20. It is formed by winding.

コイル装置１００では、内巻層１４０ａであっても、外巻層１４０ｂであっても、第１ワイヤ部１４２と第２ワイヤ部１４４の配列が同じであるため、第２巻線部４０全体で考えた場合でも、第２ワイヤ部１４４の方が、第１ワイヤ部１４２より第１巻線部３０の近くに配置されている。したがって、第２ワイヤ部１４４の方が、第１ワイヤ部１４２より磁気結合が強くなり、第２ワイヤ部１４４に偏って大電流が流れ、発熱やエネルギー損失が大きくなる問題が発生する。また、磁気結合に偏りがあると循環電流が生じる場合があり、このような場合、循環電流の発生に伴う発熱やエネルギー損失が生じる問題が発生する。   In the coil device 100, the arrangement of the first wire portion 142 and the second wire portion 144 is the same in either the inner winding layer 140a or the outer winding layer 140b. Even when considered, the second wire portion 144 is disposed closer to the first winding portion 30 than the first wire portion 142. Therefore, the second wire portion 144 has a stronger magnetic coupling than the first wire portion 142, and a large current flows biased to the second wire portion 144, which causes a problem of large heat generation and energy loss. In addition, if there is a bias in the magnetic coupling, a circulating current may occur, and in such a case, a problem of heat generation and energy loss accompanying the generation of the circulating current occurs.

これに対して、図１に示すコイル装置１０は、内巻層４０ａでは、第２ワイヤ部４４が第１ワイヤ部４２より第１巻線部３０の近くに配置されており、外巻層４０ｂでは第１ワイヤ部４２が第２ワイヤ部４４より第１巻線部３０の近くに配置されている。このような配置とすることにより、コイル装置１０は、第１ワイヤ部１４２と第２ワイヤ部１４４とで、第１巻線部３０に対する磁気結合を揃えることができる。したがって、コイル装置１０は、いずれかのワイヤ部に偏って電流が流れる問題や、循環電流が発生する問題を防止して、これに伴う発熱やエネルギー損失を防ぐことができる。   On the other hand, in the coil device 10 shown in FIG. 1, in the inner winding layer 40a, the second wire portion 44 is disposed closer to the first winding portion 30 than the first wire portion 42, and the outer winding layer 40b. The first wire portion 42 is disposed closer to the first winding portion 30 than the second wire portion 44. With such an arrangement, the coil device 10 can align the magnetic coupling with the first winding portion 30 between the first wire portion 142 and the second wire portion 144. Therefore, the coil device 10 can prevent the problem of current flow biased to one of the wire portions and the problem of generation of circulating current, and can prevent heat generation and energy loss accompanying this.

また、コイル装置１０では、外巻層第１ワイヤ部４２ｂと内巻層第２ワイヤ部４４ａとの距離が、外巻層第２ワイヤ部４４ｂと内巻層第２ワイヤ部４４ａとの距離より小さい。このような配置とすることにより、第１ワイヤ部１４２と第２ワイヤ部１４４とで、第１巻線部３０に対する磁気結合を、より均質に揃えることができ、また、省スペースの点でも有利である。   Further, in the coil device 10, the distance between the outer winding layer first wire portion 42b and the inner winding layer second wire portion 44a is greater than the distance between the outer winding layer second wire portion 44b and the inner winding layer second wire portion 44a. small. With such an arrangement, the magnetic coupling to the first winding portion 30 can be made more uniform by the first wire portion 142 and the second wire portion 144, and it is also advantageous in terms of space saving. It is.

以上、コイル装置１０を用いて本発明を説明したが、本発明は上述の実施形態に限定されるものではなく、様々な変形例を含むことは言うまでもない。例えば、第２巻線部４０は、内巻層４０ａと外巻層４０ｂとの２層構造に限定されず、３層、４層又は５層以上、第１ワイヤ部１４２及び第２ワイヤ部１４４が巻回された構造であってもよい。３層以上の代２巻線部を形成する場合、巻き進める方向を変える毎にワイヤ束４６を捻り（図５（ｂ）参照）、第１ワイヤ部１４２と第２ワイヤ部１４４の位置関係を入れ換えることが好ましい。   Although the present invention has been described above using the coil device 10, it is needless to say that the present invention is not limited to the above-described embodiment and includes various modifications. For example, the second winding portion 40 is not limited to the two-layer structure of the inner winding layer 40a and the outer winding layer 40b, and three, four, five or more layers, the first wire portion 142 and the second wire portion 144. May be wound. When forming two or more layer 2 winding parts, twisting the wire bundle 46 (see FIG. 5B) every time the winding direction is changed, the positional relationship between the first wire part 142 and the second wire part 144 It is preferable to replace it.

また、内巻層４０ａと外巻層４０ｂのターン数は同一であってもよく、外巻層４０ｂのターン数を内巻層４０ａのターン数より少なくするなど、内巻層４０ａと外巻層４０ｂのターン数が異なっていてもよい。   The number of turns of the inner winding layer 40a and the outer winding layer 40b may be the same, and the number of turns of the outer winding layer 40b may be smaller than the number of turns of the inner winding layer 40a, etc. The number of turns of 40b may be different.

１０…コイル装置
２０…ボビン
２２…外周面
２２ａ…第１外周面
２２ｂ…第２外周面
２８…仕切部
３０… 第１巻線部
４０… 第２巻線部
４０ａ… 内巻層
４０ｂ… 外巻層
４２… 第１ワイヤ部
４２ａ… 内巻層第１ワイヤ部
４２ｂ… 外巻層第１ワイヤ部
４４… 第２ワイヤ部
４４ａ… 内巻層第２ワイヤ部
４４ｂ… 外巻層第２ワイヤ部
４６… ワイヤ束
Ｘ… 巻軸方向 DESCRIPTION OF SYMBOLS 10 ... Coil apparatus 20 ... Bobbin 22 ... Outer peripheral surface 22a ... 1st outer peripheral surface 22b ... 2nd outer peripheral surface 28 ... Partition part 30 ... 1st winding part 40 ... 2nd winding part 40a ... Inner winding layer 40b ... Outer winding Layer 42 ... first wire section 42a ... inner winding layer first wire section 42b ... outer winding layer first wire section 44 ... second wire section 44a ... inner winding layer second wire section 44b ... outer winding layer second wire section 46 ... Wire bundle X ... Winding axis direction

Claims (5)

外周面に仕切部を有するボビンと、
前記仕切部の一方側の前記外周面に巻回された第１巻線部と、
前記仕切部の他方側の前記外周面に巻回され、内巻層と当該内巻層より前記他方側の前記外周面に対して遠くに位置する外巻層とを有する第２巻線部と、を有するコイル装置であって、
前記第２巻線部は、巻軸方向に互いに隣り合うように巻かれている第１ワイヤ部と第２ワイヤ部とを有し、
前記内巻層では、前記第１ワイヤ部と前記第２ワイヤ部とのうち一方が他方より前記第１巻線部の近くに配置されており、
前記外巻層では、前記第１ワイヤ部と前記第２ワイヤ部とのうち前記他方が前記一方より前記第１巻線部の近くに配置されており、
一対の前記第１ワイヤ部および前記第２ワイヤ部には、前記内巻層と前記外巻層との間で捻れた捻れ部が形成され、前記捻れ部に接続された第１ワイヤ部と、前記捻れ部に接続された第２ワイヤ部とで、前記第１巻線部に対する磁気結合が揃っていることを特徴とするコイル装置。 A bobbin having a partition on the outer peripheral surface,
A first winding portion wound around the outer peripheral surface on one side of the partition portion;
A second winding portion wound around the outer peripheral surface on the other side of the partition, and having an inner winding layer and an outer winding layer located farther from the outer winding surface on the other side than the inner winding layer; A coil device having
The second winding portion has a first wire portion and a second wire portion wound so as to be adjacent to each other in the winding axis direction,
In the inner winding layer, one of the first wire portion and the second wire portion is disposed closer to the first winding portion than the other,
In the outer winding layer, the other of the first wire portion and the second wire portion is disposed closer to the first winding portion than the one ,
In the pair of the first wire portion and the second wire portion, a twisted portion twisted between the inner winding layer and the outer winding layer is formed, and a first wire portion connected to the twisted portion; A coil device characterized in that magnetic coupling with the first winding portion is uniformed with the second wire portion connected to the twisted portion . 前記外巻層の前記第１ワイヤ部は、前記外巻層の前記第２ワイヤ部より、前記内巻層の前記第２ワイヤ部の近くに配置されていることを特徴とする請求項１に記載のコイル装置。   The first wire portion of the outer winding layer is disposed closer to the second wire portion of the inner winding layer than the second wire portion of the outer winding layer. Coil device as described. 前記ボビンの内部に配置されたコアを有する請求項１又は請求項２に記載のコイル装置。   The coil device according to claim 1, further comprising a core disposed inside the bobbin. 外周面に仕切部を有するボビンを準備する工程と、
前記仕切部の一方側の前記外周面に第１巻線部を形成する工程と、
前記仕切部の他方側の前記外周面に、第１ワイヤ部及び第２ワイヤ部を有するワイヤ束を、前記第１ワイヤ部と前記第２ワイヤ部とが巻軸方向に互いに隣り合うように巻回して、第２巻線部の内巻層を形成する工程と、
前記ワイヤ束を捻って捻れ部を形成し、前記第１ワイヤ部と前記第２ワイヤ部との位置関係を変えたのち、前記内巻層の外側に、位置関係を変えた前記ワイヤ束を、前記第１ワイヤ部と前記第２ワイヤ部とが前記巻軸方向に互いに隣り合うように巻回して、前記第２巻線部の外巻層を形成する工程と、を有し、
前記捻れ部に接続された第１ワイヤ部と、前記捻れ部に接続された第２ワイヤ部とで、前記第１巻線部に対する磁気結合が揃っているコイル装置の製造方法。 Preparing a bobbin having a partition on the outer peripheral surface;
Forming a first winding portion on the outer peripheral surface on one side of the partition portion;
A wire bundle having a first wire portion and a second wire portion is wound on the outer peripheral surface on the other side of the partition portion such that the first wire portion and the second wire portion are adjacent to each other in the winding axis direction Forming an inner winding layer of the second winding portion;
The wire bundle is twisted to form a twisted portion, and after changing the positional relationship between the first wire portion and the second wire portion, the wire bundle whose positional relationship is changed outside the inner winding layer, wherein the first wire portion and the second wire portion is wound so as to be adjacent to each other in the winding axis direction, have a, and forming an outer wound layer of said second winding portion,
A manufacturing method of a coil device by which magnetic coupling to the 1st winding part is in alignment by the 1st wire part connected to the twist part, and the 2nd wire part connected to the twist part . 前記仕切部には、前記内巻層を構成する第１ワイヤ部または第２ワイヤ部と、前記外巻層を構成する第１ワイヤ部または第２ワイヤ部とが接していることを特徴とする請求項１〜４のいずれかに記載のコイル装置。The first wire portion or the second wire portion constituting the inner winding layer and the first wire portion or the second wire portion constituting the outer winding layer are in contact with the partition portion. The coil device according to any one of claims 1 to 4.
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US8648686B2 (en) * 2009-11-05 2014-02-11 Delta Electronics, Inc. Resonant transformer and resonant converter employing same
JP2012099590A (en) * 2010-11-01 2012-05-24 Tdk Corp Transformer
CN101950656B (en) 2010-08-24 2012-01-04 合肥华耀电子工业有限公司 Method for winding coils of high-frequency resonance transformer
JP5353947B2 (en) 2011-05-26 2013-11-27 Ｔｄｋ株式会社 Coil parts and surface mount pulse transformer
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CN106298195B (en) * 2015-05-12 2018-11-02 光宝电子(广州)有限公司 Magnetic element

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CN110853897B (en) 2023-03-14
KR20160117204A (en) 2016-10-10
KR101837264B1 (en) 2018-03-09
CN106024332A (en) 2016-10-12
US9793044B2 (en) 2017-10-17
US20160293317A1 (en) 2016-10-06
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JP2016192489A (en) 2016-11-10
US20170352474A1 (en) 2017-12-07

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